How to Change the Furnace Filter on a Flame Master
- 1). Shut down power to the furnace. Turn your thermostat to the "Off" position and turn the power switch off at the furnace.
- 2). Locate the filter rack on the furnace. It will most likely be located at the side of the furnace in the return air duct.
- 3). Remove the filter rack guard, if applicable. It will just pull out of the filter rack and expose the side of the filter.
- 4). Grab on to the filter and pull it straight out of the filter rack. Note the numerical sizing listed on it. This is your replacement size.
- 5). Slide the new filter into the filter rack. Orient the arrow so that it points toward your furnace.
- 6). Place the filter rack guard back into place, if applicable. Restore power to your furnace and enjoy full efficiency once again.
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